The hmlPRO TRAINING SOCKS LOW are crafted from a recycled-polyester blend, making them long-lasting. These hummel socks feature arch support for extra comfort. Plus, the moisture management technology keeps your feet cool and dry.Product detailsRecycled polyester blendArch supportChevron designMoisture managementQuality:83% Recycled Polyester, 11% Organic Cotton, 5% Elastane, 1% Recycled PolyamideMachine wash at 40 degreesDo not bleachDo not tumble dryDo not ironDo not clean